Effect of Canola Oil on Cholesterol and Fatty 
 Acid Composition of Egg-yolk of Laying Hens

Rowghani, E.; Arab, Masoud; Nazifi, Saeed; ., Z. Bakhtiari

doi:10.3923/ijps.2007.111.114

Cited by 24 publications

(10 citation statements)

References 17 publications

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“…People use laying hens as a fatty acid converter to achieve nutritional optimization. For example, the addition of 5% rapeseed oil to the diet of laying hens significantly increases the weight of the egg yolk and the contents of DHA and n − 3 FAs in the egg yolk [ 13 ]. Han et al [ 47 ] showed that the addition of 1.5 to 4.5% sesame oil to the diet increases the UFA content in egg yolks and reduces the blood lipid levels of laying hens.…”

Section: Mechanism Underlying the Effects Of Dietary Oils On The Production Performance And Egg Quality Of Laying Hensmentioning

confidence: 99%

“…As an example, the addition of 6% canola oil will decrease egg production and significantly increase thiobarbituric acid reactive substance (TBARS) levels in eggs on the 21st day of the addition trial (corn–soybean meal compared with 6% rapeseed oil) [ 12 ]. Some studies have shown that the addition of 3% and 5% rapeseed oil to the basal diet of 24-week-old Hyland brown chickens has no significant effect on the egg weight [ 13 ], but the addition of 2%, 4%, and 6% rapeseed oil to the diet of 40-week-old brown chickens reduces feed intake, egg production, and egg weight [ 12 ]. Compared with the results obtained with the addition of 3% fish oil, olive oil, grape seed oil, or soybean oil, the addition of equal amounts of canola oil to the diets of laying hens does not significantly change the egg production, egg weight, feed intake, or FCR but increases the linolenic acid content in the egg yolk [ 14 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Oils in Feed on the Production Performance and Egg Quality of Laying Hens

Gao

Zhang

et al. 2021

Animals

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With the development of a large-scale and intensive production industry, the number of laying hens in China is rapidly increasing. Oils, as an important source of essential fatty acids, can be added to the diet to effectively improve the production performance and absorption of other nutrients. The present review discusses the practical application of different types and qualities of oils in poultry diets and studies the critical effects of these oils on production performance, such as the egg weight, feed intake, feed conversion ratio (FCR), and various egg quality parameters, including the albumen height, Haugh units, yolk color, and saturated/unsaturated fatty acids. This article reviews the effects of different dietary oil sources on the production performance and egg quality of laying hens and their potential functional mechanisms and provides a reference for the selection of different sources of oils to include in the diet with the aim of improving egg production. This review thus provides a reference for the application of oils to the diets of laying hens. Future studies are needed to determine how poultry products can be produced with the appropriate proper oils in the diet and without negative effects on production performance and egg quality.

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Section: Mechanism Underlying the Effects Of Dietary Oils On The Production Performance And Egg Quality Of Laying Hensmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Oils in Feed on the Production Performance and Egg Quality of Laying Hens

Gao

Zhang

et al. 2021

Animals

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“…The amount of egg yolk cholesterol Increased because of the decrease in lipogenesis with fatty acids, although the cholesterol level increased in the liver. Therefore, it is increased in the egg yolk [1]. Table 3.…”

Section: The Effect Of Sesame Oil On Egg Qualitymentioning

confidence: 99%

“…It has been known that the supplementation of vegetable oil provided essential fatty acid precursor, which cannot be synthesized by animal or human. It has been proved that the supplemental oils significantly altered egg yolk lipid profiles or lipid composition ratios [1] [2]. These essential fatty acids are commonly found in some animal oils such as fish oil and vegetable oils such as sesame oil, canola oil, soybean oil etc.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Different Levels of Sesame Oil on Productive Performance, Egg Yolk and Blood Serum Lipid Profile in Laying Hens

Hoan

Khoa

2016

OJAS

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Addition of sesame oil into layer diets has been proved to enrich the proportion of polyunsaturated fatty acids in animal's products. In this study, the effects of different levels of sesame oil in the diets on the performance, egg yolk and blood serum lipid profile of Isa Brown laying hens were investigated. A total of 96 layers were assigned into 4 groups to receive either 1 of 4 different diets contained 0.0%, 1.5%, 3.0% and 4.5% sesame oil, respectively. Sample of 12 eggs obtained from each groups were assessed for egg quality. The egg yolk fatty acid profile was determined with gas chromatography. Results revealed that the higher levels of sesame oil in the diet decreased egg production, egg weight, and egg yolk color except feed conversion ratio. In addition, supplementation of sesame oil increased the flow index of the eggs and the Haugh unite. The egg yolk lipid profile was not significantly different in the sesame oil fed groups, whereas, compare to control, it decreased the level of cholesterol. The blood serum lipid profile decreased in the sesame oil groups compare to control group. Meanwhile, monoacildigliserol also decreased in the sesame addition groups. In parallel with increasing levels of sesame oil, monounsaturated fatty acid (oleic acid) in the egg yolks significantly increased compared to the control (37.00%, 42.89%, 42.20% and 43.48%, respectively). It can be implied that sesame oil supplementation into the laying hens diet is necessary to produce monounsaturated fatty acid (MUFA) enriched eggs.

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“…De même le poids moyen des oeufs et du jaune d'oeuf n'a pas été affecté par l'ingestion du régime R5 (p > 0,05). L'absence de différence significative entre les régimes sur ces paramètres dans la présente étude est conforme aux résultats de nombreuses études (Augustyn et al, 2006 ;Rowghani et al, 2007). Par ailleurs, la chute de ponte (non significative), observée chez les animaux ayant reçu le régime R5, pourrait être due à la présence de facteurs antinutritionnels dans les graines d'euphorbe (Kouakou et al, 2015).…”

Section: Ingestion Alimentaire Et Production D'oeufsunclassified

Enrichissement en acides gras polyinsaturés oméga-3 du jaune d’œuf de cailles (<em>Coturnix coturnix japonica</em>) par les graines d’euphorbe (<em>Euphorbia heterophylla</em>)

Kouakou

Koffi

Angbo-Kouakou

et al. 2018

Rev. Elev. Med. Vet. Pays Trop.

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L’alimentation des cailles (Coturnix coturnix japonica) dans les fermes ivoiriennes est basée principalement sur les aliments commerciaux de poules pondeuses. Cependant, cette pratique pourrait nuire à la qualité nutritionnelle des œufs. L’objectif de cette étude était de déterminer l’impact de cet aliment (régime témoin) ou de sa supplémentation avec 5 % de graines d’euphorbe (Euphorbia heterophylla) (régime R5) sur le profil en acides gras des jaunes d’œufs de 30 cailles de 172 ± 2 g durant 15 jours. Les résultats ont montré que le régime R5 ne modifiait pas les teneurs en acides gras saturés, en acides gras mono-insaturés et en acides gras polyinsaturés oméga-6 (AGPI n-6) (p > 0,05). Cependant, il a induit une amélioration de la teneur en acides gras polyinsaturés oméga-3 (AGPI n-3) (p < 0,05) qui était cinq fois plus élevée que celle du régime témoin. Les proportions des acides gras C18:3 n-3, C20:5 n-3 et C22:6 n-3 des jaunes d’œufs issus de R5 ont été multipliées respectivement par 17, 11 et 3. Par ailleurs, le rapport AGPI n-6 / AGPI n-3 était inférieur à 4. Ainsi, l’incorporation de 5 % de graines d’euphorbe dans l’aliment commercial de poules pondeuses a permis d’améliorer la qualité nutritionnelle des œufs de cailles.

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Effect of Canola Oil on Cholesterol and Fatty Acid Composition of Egg-yolk of Laying Hens

Cited by 24 publications

References 17 publications

Effect of Oils in Feed on the Production Performance and Egg Quality of Laying Hens

Effect of Oils in Feed on the Production Performance and Egg Quality of Laying Hens

The Effect of Different Levels of Sesame Oil on Productive Performance, Egg Yolk and Blood Serum Lipid Profile in Laying Hens

Enrichissement en acides gras polyinsaturés oméga-3 du jaune d’œuf de cailles (<em>Coturnix coturnix japonica</em>) par les graines d’euphorbe (<em>Euphorbia heterophylla</em>)

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